Solar Cooking in Tanzania
A collaboration between: Ben, Lindsey, Sara, Noel.
Our goal is to build a viable solar cooker
for use in Tanzania.
This would serve as an alternative to
gas/coal/wood burning fires during daylight
We aim to empower local businesses with
the means for this technology to be
distributed widely throughout the region.
an understanding of the culture, particularly cooking
customs, and traditions.
Having the ability to cook Tanzanian foods like Chapatti and
lentils using a solar cooker.
the most fitting solar cooker based on quantity of
materials, surface area, and quality of solar cooker.
problems in the area such as deforestation.
other materials to minimize the usage the energy.
Understanding what’s really working for
We want to have a coherent plan to start, construct, and run a
solar cooker business using local materials and man power
An alternative would be to collect donations and make solar
cookers to send to a contact in Tanzania.
How does a Parabolic
shape is that of a circular
surface generated by a parabola revolving
around its axis.
parabolic reflector transforms an
incoming plane wave traveling along the axis
into a spherical wave converging toward the
, a spherical wave generated by a
point source placed in the focus is
transformed into a plane wave propagating
as a collimated beam along the axis.
What Does That Mean?
Light coming in goes to the focus.
Light emitted from the focus is dispersed in
a straight line.
Poverty and Welfare in Tanzania
Households with electricity:
grid, 2% other sources)
and charcoal are the most
used by 78% and 14% of households respectively.
with protected water source:
Overall, 44% of Tanzanian households still use unprotected
sources of drinking water, including wells and springs and
surface water such as rivers and lakes. Some 39% use
piped water and another 16% use protected wells or
Adults who’s 1
activity is agriculture:
below the food
Below basic needs
How the poverty line is
food poverty line is the minimum
spending per person needed to provide
2,200 calories a day for one month, based
on the foods consumed by the poorest
50% of the population.
needs’ poverty line allows for other
essentials such as clothes
SHARE OF HOUSEHOLD
The sale of agricultural products was the
main source of cash income for 62% of
households, compared with 67% in
the most important single
The importance of cash crops has fallen.
They now provide the main source of
cash for only 17% of households.
The World Bank reports that in 2001 per capita
household consumption (in constant 1995 US dollars)
consumption includes expenditures of
individuals, households, and nongovernmental
organizations on goods and services, excluding
richest 10% of the population accounted for
approximately 30.1% of household consumption and the
poorest 10% approximately 2.8%.
country's food crops include maize,
sorghum, millet, rice, wheat, cassava,
potatoes, bananas and
crops include cashew nuts, cotton,
coffee, cloves, sisal, tobacco, tea and
provides the mainstay of the
close to four
fifths of the economically active population.
grow food for subsistence and for
sale. Minerals, precious metals, fish, timber,
and meat are also important products
Food Practices in Tanzania
most Tanzanians no meal is complete
without a hardy helping of
are preferred in the northwest,
thick mash of corn or sorghum) in the central
, and rice in the
staple is accompanied by a fish, beef, goat,
chicken, or mutton stew or fried pieces of meat,
along with several types of vegetables or
preferences depend on income levels
foods sold on
the streets are common.
How can you make one?
Various methods can be used to construct
the parabolic dish.
Plaster/concrete molds can be made then use that to make
Sheet metal can be formed to the molds.
Wood frames can be made and lined with reflective material.
Reusing old satellite dishes as parabolic reflectors is also a
Reflective Material Ideas
Some very cheap and accessible
Pak juices, and windshield
we could collect these
items and use them to benefit the project
, very excellent